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Holemaking Products - Counterbores & Porting Tools For Sale | A1 Tooling - (1669 Products)

Made in USA - 5/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot - A1 Tooling

Made in USA - 5/32" Head Diam, 1/8" Shank Diam, Counterbore Pilot


Item #: 78902103
Brand: Made in USA
Model #:

Product Specifications
Head Diameter (Inch) 5/32
Shank Diameter (Inch) 1/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material Carbon Steel

$12.63

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Union Butterfield - 9/32" Head Diam, 5/32" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 9/32" Head Diam, 5/32" Shank Diam, Counterbore Pilot


Item #: 66386921
Brand: Union Butterfield
Model #: 3210122

Product Specifications
Head Diameter (Inch) 9/32
Shank Diameter (Inch) 5/32
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$43.11

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Made in USA - 3/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 3/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08272874
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.6040
Fastener Size Compatibility (Inch) 3/8
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.4060
Shank Type Straight
Overall Length (Inch) 6-1/2
Cutting Direction Forward

$64.01

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Value Collection - 11/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 11/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 08906448
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 11/16
Shank Diameter (Inch) 5/16
Pilot Material Carbon Steel

$17.44

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Union Butterfield - 3/4" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 3/4" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 65707101
Brand: Union Butterfield
Model #: 3210139

Product Specifications
Head Diameter (Inch) 3/4
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$96.32

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Interstate - 6mm Compatible Cobalt, Solid Pilot Counterbore - A1 Tooling

Interstate - 6mm Compatible Cobalt, Solid Pilot Counterbore


Item #: 45403425
Brand: Interstate
Model #:

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Counterbore Diameter (mm) 11.00
Fastener Size Compatibility (mm) 6.00
Counterbore Material Cobalt
Shank Diameter (Decimal Inch) 0.4370
Number of Flutes 3
Pilot Diameter (mm) 6.60
Shank Type Straight
Overall Length (mm) 127.00
Cutting Direction Forward

$45.45

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Union Butterfield - 3/4" Head Diam, 3/8" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 3/4" Head Diam, 3/8" Shank Diam, Counterbore Pilot


Item #: 65707085
Brand: Union Butterfield
Model #: 3210160

Product Specifications
Head Diameter (Inch) 3/4
Shank Diameter (Inch) 3/8
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$92.60

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Value Collection - 9/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 9/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 08905366
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 9/16
Shank Diameter (Inch) 1/4
Pilot Material Carbon Steel

$15.30

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Union Butterfield - 5/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 5/16" Head Diam, 1/4" Shank Diam, Counterbore Pilot


Item #: 65707028
Brand: Union Butterfield
Model #: 3210132

Product Specifications
Head Diameter (Inch) 5/16
Shank Diameter (Inch) 1/4
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$43.11

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Value Collection - 1-3/4" Head Diam, 1/2" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 1-3/4" Head Diam, 1/2" Shank Diam, Counterbore Pilot


Item #: 08909905
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 1-3/4
Shank Diameter (Inch) 1/2
Pilot Material Carbon Steel

$54.12

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Cleveland - #12 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - #12 Wire Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852246
Brand: Cleveland
Model #: C91703

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Inch) 3/8
Fastener Size Compatibility (Wire) #12
Fastener Size Compatibility (Inch) 1/4
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 3/8
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 1/4
Pilot Diameter (mm) 6.35
Pilot Diameter (Decimal Inch) 0.2500
Shank Type Straight
Overall Length (Inch) 5-3/4
Overall Length (Decimal Inch) 5.75
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$120.86

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Cleveland - 17/32" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 17/32" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 63677694
Brand: Cleveland
Model #: C46622

Product Specifications
Head Diameter (Inch) 17/32
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel
Material Application Alloy Tool Steel; Aluminum; Cast Iron; Low Carbon Steel; Medium Carbon Steel

$54.17

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Made in USA - 7/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 7/8" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08273005
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 1.3540
Fastener Size Compatibility (Inch) 7/8
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 7/8
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.9060
Shank Type Straight
Overall Length (Inch) 8-1/8
Cutting Direction Forward

$168.33

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Union Butterfield - 7/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot - A1 Tooling

Union Butterfield - 7/32" Head Diam, 3/16" Shank Diam, Counterbore Pilot


Item #: 65706897
Brand: Union Butterfield
Model #: 3210284

Product Specifications
Head Diameter (Inch) 7/32
Shank Diameter (Inch) 3/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel

$40.45

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Keo - 1/2" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore - A1 Tooling

Keo - 1/2" Socket Head Cap Screw Compatible, Cobalt, Solid Pilot Counterbore


Item #: 02828663
Brand: Keo
Model #: 55229

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.7890
Fastener Size Compatibility (Inch) 1/2
Counterbore Material Cobalt
Finish/Coating Bright
Standard or Oversize Pilot Oversize
Shank Diameter (Inch) 1/2
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.5310
Shank Type Straight
Overall Length (Inch) 6
Cutting Direction Forward

$95.64

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Value Collection - 1/4" Compatible High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Value Collection - 1/4" Compatible High Speed Steel, Solid Pilot Counterbore


Item #: 08862161
Brand: Value Collection
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Product Specifications
Counterbore Diameter (Inch) 13/32
Fastener Size Compatibility (Inch) 1/4
Counterbore Material High Speed Steel
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 3/8
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 9/32
Shank Type Straight
Cutting Direction Forward

$41.04

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Value Collection - 3/8" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Value Collection - 3/8" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 08906240
Brand: Value Collection
Model #:

Product Specifications
Head Diameter (Inch) 3/8
Shank Diameter (Inch) 5/16
Pilot Material Carbon Steel

$9.22

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Cleveland - 1/2" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Cleveland - 1/2" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 81852501
Brand: Cleveland
Model #: C91723

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Inch) 25/32
Fastener Size Compatibility (Inch) 1/2
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 1/2
Shank Diameter (mm) 12.70
Shank Diameter (Decimal Inch) 0.5000
Number of Flutes 3
Aircraft-Style No
Pilot Diameter (Inch) 17/32
Shank Type Straight
Overall Length (mm) 184.15
Overall Length (Inch) 7-1/4
Overall Length (Decimal Inch) 7.25
Cutting Direction Forward
Material Application Alloy Tool Steel; Carbon Steel; Cast Iron

$172.59

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Cleveland - 13/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot - A1 Tooling

Cleveland - 13/16" Head Diam, 5/16" Shank Diam, Counterbore Pilot


Item #: 63677777
Brand: Cleveland
Model #: C46678

Product Specifications
Head Diameter (Inch) 13/16
Shank Diameter (Inch) 5/16
Finish/Coating Bright
Aircraft-Style No
Pilot Material High Speed Steel
Material Application Alloy Tool Steel; Aluminum; Cast Iron; Low Carbon Steel; Medium Carbon Steel

$68.68

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Made in USA - 1/4" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore - A1 Tooling

Made in USA - 1/4" Socket Head Cap Screw Compatible, High Speed Steel, Solid Pilot Counterbore


Item #: 08272809
Brand: Made in USA
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Fastener Type Compatibility Socket-Head Cap Screw
Counterbore Diameter (Decimal Inch) 0.3980
Fastener Size Compatibility (Inch) 1/4
Counterbore Material High Speed Steel
Finish/Coating Bright
Standard or Oversize Pilot Standard
Shank Diameter (Inch) 5/16
Number of Flutes 4
Aircraft-Style No
Pilot Diameter (Decimal Inch) 0.2650
Shank Type Straight
Overall Length (Inch) 5-5/8
Cutting Direction Forward

$46.91

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